// Copyright (C) Kumo inc. and its affiliates.
// Author: Jeff.li lijippy@163.com
// All rights reserved.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//

package task

import (
	"context"
	"fmt"
	"strings"

	"github.com/kumose/errors"
	"github.com/kumose/kmopt/pkg/cluster/ctxt"
)

// Rmdir is used to delete directory on the target host
type Rmdir struct {
	host string
	dirs []string
}

// Execute implements the Task interface
func (r *Rmdir) Execute(ctx context.Context) error {
	exec, found := ctxt.GetInner(ctx).GetExecutor(r.host)
	if !found {
		return ErrNoExecutor
	}

	cmd := fmt.Sprintf(`rm -rf %s`, strings.Join(r.dirs, " "))
	_, _, err := exec.Execute(ctx, cmd, false)
	if err != nil {
		return errors.Trace(err)
	}

	return nil
}

// Rollback implements the Task interface
func (r *Rmdir) Rollback(ctx context.Context) error {
	return ErrUnsupportedRollback
}

// String implements the fmt.Stringer interface
func (r *Rmdir) String() string {
	return fmt.Sprintf("Rmdir: host=%s, directories='%s'", r.host, strings.Join(r.dirs, "','"))
}
